﻿#region Copyright © 2011 Prageeth Silva <prageeth@thenewcoders.com>
/*
 * This software is provided 'as-is', without any express or implied warranty.
 * In no event will the author(s) be held liable for any damages arising from
 * the use of this software.
 * 
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 * 
 *   1. The origin of this software must not be misrepresented; you must not
 *      claim that you wrote the original software. If you use this software
 *      in a product, an acknowledgment in the product documentation would be
 *      appreciated but is not required.
 * 
 *   2. Altered source versions must be plainly marked as such, and must not
 *      be misrepresented as being the original software.
 * 
 *   3. This notice may not be removed or altered from any source distribution.
 */
#endregion

using System;
using System.ComponentModel;
using System.Windows.Forms;

namespace SourcePlus.Core
{

    public static class AsyncHelper
    {
        public static void InvokeIfRequired<T>(this T c, Action<T> action) where T : Control
        {
            if (c.InvokeRequired)
            {
                c.Invoke(new Action(() => action(c)));
            }
            else
            {
                action(c);
            }
        }

    }

    public delegate void SearchCompletedEventHandler(object sender, SearchCompletedEventArgs e);

    public class SearchCompletedEventArgs : RunWorkerCompletedEventArgs
    {

        public SearchCompletedEventArgs(RunWorkerCompletedEventArgs parent)
            : base(parent.Result, parent.Error, parent.Cancelled)
        {

        }

    }

    public delegate void DownloadCompletedEventHandler(object sender, DownloadCompletedEventArgs e);

    public class DownloadCompletedEventArgs : AsyncCompletedEventArgs
    {

        public DownloadCompletedEventArgs(AsyncCompletedEventArgs parent)
            : base(parent.Error, parent.Cancelled, parent.UserState)
        {

        }

    }

    public delegate void ActionCompletedEventHandler(object sender, ActionCompletedEventArgs e);

    public class ActionCompletedEventArgs : AsyncCompletedEventArgs
    {

        public ActionCompletedEventArgs(AsyncCompletedEventArgs parent)
            : base(parent.Error, parent.Cancelled, parent.UserState)
        {

        }

        public ActionCompletedEventArgs(RunWorkerCompletedEventArgs parent)
            : base(parent.Error, parent.Cancelled, parent.UserState)
        {

        }

    }

}
